#37699B#37699B

#37699B is a mid, moderate cyan. Relative luminance 0.133; OKLCH L 50.9% C 0.097 H 250.3°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#37699B
RGB	rgb(55, 105, 155)
HSL	hsl(210, 48%, 41%)
HSV	hsv(210, 65%, 61%)
CMYK	cmyk(64.5%, 32.3%, 0%, 39.2%)
CIE-LAB	lab(43.18, -0.55, -32.18)
CIE-LCH	lch(43.18, 32.18, 269.02°)
OKLab	oklab(50.93% -0.0326 -0.0909)
OKLCH	oklch(50.93% 0.097 250.3)
XYZ	xyz(12.5413, 13.2807, 32.9065)
Luminance	0.1328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37699B #9B6937

analogous

#379B9B #37699B #37379B

triadic

#37699B #9B3769 #699B37

tetradic

#37699B #9B379B #9B6937 #379B37

square

#37699B #9B379B #9B6937 #379B37

split-complementary

#37699B #9B3737 #9B9B37

monochromatic

#172C41 #274A6E #37699B #4F88C0 #7CA6D0

Accessibility & contrast

On white

5.74

#37699B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#37699B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37699B

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37699B	#FFFFFF	#000000	##FFFFFF
##37699B	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536B9D

Deuteranopia (green-blind)

#46629A

Tritanopia (blue-blind)

#00757B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #37699b;
/* rgb */ color: rgb(55, 105, 155);
/* oklch */ color: oklch(50.9% 0.097 250.3);

Tailwind

colors: {
  custom: {
    50: '#7893b8',
    500: '#37699b',
    950: '#000000',
  },
}

SCSS

$custom: #37699b;
$custom-light: #7893b8;
$custom-dark: #000000;

JSON

{
  "hex": "#37699b",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 155
  },
  "hsl": {
    "h": 210,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50933,
    "c": 0.09661,
    "h": 250.3
  },
  "luminance": 0.13282
}

Semantic roles & 50–950 ramp

primary

#37699B

secondary

#BA9774

accent

#9451D7

background

#F7F9FB

surface

#EEF1F6

border

#C9CBD0

text

#0A0D11

muted

#7C7E80

Preview Lab

Preview with #37699B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →